12148780 has 48 divisors (see below), whose sum is σ = 29465856. Its totient is φ = 4121280.

The previous prime is 12148777. The next prime is 12148781. The reversal of 12148780 is 8784121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12148781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14575 + ... + 15385.

It is an arithmetic number, because the mean of its divisors is an integer number (613872).

Almost surely, 2^12148780 is an apocalyptic number.

12148780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12148780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14732928).

12148780 is an abundant number, since it is smaller than the sum of its proper divisors (17317076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12148780 is a wasteful number, since it uses less digits than its factorization.

12148780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 12148780 is about 3485.5100057237. The cubic root of 12148780 is about 229.8851348308.

The spelling of 12148780 in words is "twelve million, one hundred forty-eight thousand, seven hundred eighty".